Lifting-jack.



R. B. WEBER.

LIFTHJG JACK. APPLICATION FILED JULY 21.149121.

Paw afilma 4. 1918.-

IN YEA/TOR.

RALPH B. WEBER, OF ST. CHARLES, MISSOURI, ASSIGNOR TO L. A. SCI-IOENBERG, OF ST. CHARLES, MISSOURI.

LIFTING-J'ACK.

Specification of Letters I'atent.

Patented June 4, 1918.

Application filed July 27, 1917. Serial No. 188,083.

To all whom it may concern:

Be it known that I, RALPH B. VVEBER, a citizen of the United States, residing at the city of St. Charles, county of St. Charles, and State of Missouri, have invented a new and useful Lifting-Jack, of which the following is a specification.

This invention relates to lifting jacks, and is primarily adapted for use for raising automobiles and other vehicles, but may be applied to any use to which such an implement is applicable.

The object of the invention is to provide a lifting jack comprising a base and a pedestal pivoted to the base and movable to any required position in respect of the base to enable the pedestal to maintain a vertical adjustment, while the base is at any required angle, whether at right angles or oblique angles relative to the pedestal, in combination with lifting mechanism in connection with the pedestal comprising a shank or stem adapted to engage with the part to be lifted and manipulative mechanism for actuating the shank or stem and holding it in its difierent adjustments.

In the accompanying drawing, in which I have illustrated one embodiment of the invention,

Figure 1 is a side elevation of the lifting jack with the base upon a horizontal support, and the pedestal extended vertically.

Fig. 2 is a side elevation of the device with the base upon an inclined or oblique support and the pedestal extending vertically.

Fig. 3 is a cross sectional view of the base on the line 3-3 of Fig. 5, illustrating the pivotal connection of the pedestal therewith.

Fig. 4 is a longitudinal sectional View of the base on the line 42 43 of Fig. 5, illustrating the pivoted arm on the pedestal located in the base.

Fig. 5 is a plan view of the base, the pedestal being in section on the line 5-5 of Fig. 4.

Fig. 6 is a sectional view of the base on the line 66 of Fig. 4:, illustrating the removable part or section of the base cooperating with the remaining portion thereof to hold 1tohe pedestal in pivotal connection with the ase.

The jack includes a base comprising a supporting part 1 adapted to bear upon the ground and to support the pedestal and a cooperating removable part 2.

The supporting part 1 is provided with a flat under surface and with a horizontal cylindrical recess or hearing 3. A transverse slot 4: through the top of the part 1 intersects and opens into the bearing 3 and affords space for the movement of the pedestal as will hereinafter appear. The removable part 2 is held in connection with the part 1 by a releasable binding element 5 which in the form shown is a screw passing through the lower portion of the supporting part 1 and into the removable part 2, so that the said part 2 will be firmly held in position thereby.

The part 2 thus arranged constitutes the upper portion of one end of the base and is symmetrical with the opposite end of the part 1 and has its upper side in the same plane with the upper side of said part 1. The inner end of the part 2 abuts against the part 1 and forms one of the side walls of the slot 4:. The part 2 is formed with a cylindrical recess 6 in axial alinement with the recess 3 and adapted to serve as a bearing for the transverse axis of the pedestal.

The pedestal 7 is a strong metallic part and is provided with an axis member 8 which is in the form of two axially alined cylindrical arms which are at right angles to the axis of the pedestal 7 and which have bearing within the recesses 3 and 6, the pedestal extending through the slot 4: and being capable of lateral oscillation as illustrated in Fig. 3. By this arrangement the base can be placed in any necessary position, Whether upon a horizontal or an inclined support, and the pedestal can be maintained in a vertical position irrespective of the support upon which the base is mounted.

The lifting mechanism which is combined with the pedestal is conventionally illustrated and, as shown, comprises the usual toothed member 9 operating within a frame 10 on the pedestal and controlled by the lever and ratchet devices 11 of the usual or any preferred type. These ratchet devices and their cooperation with the member 9 are of a well known type and specifically are no part of the present invention, it being understood that my lifting jack is capable of being combined with this and may conveniently be employed fer lift ing the automobile, Whether the vehicle is standing upon a level or an inclined surface. In either case thepedestal and lifting mechanisin will be vertical, While the base Will i stand directly against and upon the surface of the ground, Whether the surface is level or inclined. Lateral or torsional strain upon the pedestal is thus prevented so that the parts may be made of' snraller dimension and Weight than would be required if it Were necessary for thein to Withstand the lateral strains incurred devices of this character in which the base is rigid With the" pedestal When the device is used upon inclined surfaces; in the devices of rigid construction when used in" the conditions mentioned only one edge of the face en'- gages the ground'so that the entire Weight of the vehicleexerts a lateral strain upon the pedestal at its connection with the base. This strain is entirely elnninated by my de vice.

What I claim and desire to secure Letters Patent of the United vStates,-.is:

l. A lifting jack, comprising a base composed of a supporting part having a transverse slot provided With oppositely inclined end Walls, said part having a recess Whose bottoin wall is in' alinen'ie'nt with the bottoin Wall of said slot, a reinovable part mounted on the supporting part and having a recess in axial alineinent with and of the same diameter as the recess in the supporting part, and an element removably binding the removable. part upon the supporting part; a pedestal extending into said slot and heing movable in opposite directions into con tact With the inclined end Walls of said slot, respectively; t-Wo axially alined cylindrical'arms integral With and at right angles to said pedestal journaled in said rec'ess'es and arranged to rock therein as the pedestal is oscillated in said slot; and lifting mechanism in tonnectien ivith said pedestal.

2. A lifting jack coinprising a base cornposed ofa supporting p'ait having a horiztiaai' cylindrical recess therein, and having a transverse'slot through the upper part thereof intersecting and opening into the recess, a reniova'ble' part seated upon the supporting part and having a cylindrical recess in axial alinenient With the recess in the supporting part at the opposite side of said slot, and a binding element holding the removable part on the supp'ortiiigpai't; a pedestal extending into the slot; tvvo axially alined eylindrical ar'Ins, on the lower end of the pedestal .journaled in said cylindrical recesses respectively; and lifting inechanisin in connection with the pedestal.

In Witness whereof; I have signed this spe' ification in the presence of tWo subscribing Witnesses.

RALPH B. WEBER.

v Witnesses J. Gino. DIlEHli, RAYMOND WAYE.

CeiJ'ies of this patent may be o'htained for five cents each, By addressing the "commissioner o'f I E'atents,

Washington, D. 0. 

